If you saw “Forgetting Sarah Marshall” — and I hope you have as its one of the stronger comedies to be made over the last several years — you’ll likely have noticed the strong comic chemistry between British comedy sensation Russell Brand as three-quarters insane, recovering addict rock star Aldous Snow and Jonah Hill (“Superbad“) as a resort waiter and somewhat overly devoted fan of Snow’s. Well, you’re not the only one, and so we have the somewhat slapdash, sometimes brilliant, and ultimately winning new comedy, “Get Him to the Greek,” which once again brings us Brand as Aldous Snow, who, since the events of “Sarah Marshall” has suffered a failed marriage to rocker Jackie Q (Rose Byrne), had a seven-year old son, and removed the “recovering” from his addiction — kind of impressive since “Sarah Marshall” was only two years ago.

Nevertheless, having fallen headlong off the wagon, Snow needs help arriving on-time and semi-cognizant for an important TV appearance, a sound check, and a special comeback performance at L.A.’s Greek Theater. The task falls to ambitious young record company assistant Aaron Green (Hill, playing a different character than in “Sarah Marshall”), a huge fan of Snow’s in a sweet but rocky relationship with his improbably adorable doctor girlfriend (Elizabeth Moss of “Mad Men“). Frequently vomit-stained hijinks ensue as Green and Snow barely survive a number of unfortunate events, including a nearly apocalyptic visit to the set of “The Today Show,” one of the most truly mad Las Vegas sequences in film history, and the kind of freaky three-ways that would make most porn producers blanch. It’s all wrapped up with the sort of good-hearted traditional morality which reminds us that the producer is the Walt Disney of male-centric, R-rated comedies, Judd Apatow.